Authorization Code vs Electronic Certificate in Coretax

On 1 December 2025, the Directorate General of Taxes (DJP) announced that the Coretax system requires taxpayers to use electronic signatures for all online tax filings and payments. The measure aims to streamline administration and enhance data security.

An electronic signature can be created either with an authorization code issued by DJP for a non‑certified signature, or with an electronic certificate issued by a state‑recognized certification authority for a certified signature, as stipulated in PER‑7/PJ/2025. Government agencies receive certificates from internal providers, while other taxpayers may use non‑agency issuers such as Privy ID, Vida, Vinotek, or Xignature.

The authorization code is valid for two years and can be renewed through the same portal or by submitting a form to the tax office. Taxpayers can verify the expiry date and validity of their code or certificate in the Digital Certificate section of Coretax, ensuring uninterrupted compliance.